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Theorem relcmpcmet 23592
 Description: If 𝐷 is a metric space such that all the balls of some fixed size are relatively compact, then 𝐷 is complete. (Contributed by Mario Carneiro, 15-Oct-2015.)
Hypotheses
Ref Expression
relcmpcmet.1 𝐽 = (MetOpen‘𝐷)
relcmpcmet.2 (𝜑𝐷 ∈ (Met‘𝑋))
relcmpcmet.3 (𝜑𝑅 ∈ ℝ+)
relcmpcmet.4 ((𝜑𝑥𝑋) → (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ Comp)
Assertion
Ref Expression
relcmpcmet (𝜑𝐷 ∈ (CMet‘𝑋))
Distinct variable groups:   𝑥,𝐷   𝑥,𝐽   𝜑,𝑥   𝑥,𝑅   𝑥,𝑋

Proof of Theorem relcmpcmet
Dummy variable 𝑓 is distinct from all other variables.
StepHypRef Expression
1 relcmpcmet.2 . 2 (𝜑𝐷 ∈ (Met‘𝑋))
2 metxmet 22615 . . . . . . 7 (𝐷 ∈ (Met‘𝑋) → 𝐷 ∈ (∞Met‘𝑋))
31, 2syl 17 . . . . . 6 (𝜑𝐷 ∈ (∞Met‘𝑋))
43adantr 481 . . . . 5 ((𝜑𝑓 ∈ (CauFil‘𝐷)) → 𝐷 ∈ (∞Met‘𝑋))
5 simpr 485 . . . . 5 ((𝜑𝑓 ∈ (CauFil‘𝐷)) → 𝑓 ∈ (CauFil‘𝐷))
6 relcmpcmet.3 . . . . . 6 (𝜑𝑅 ∈ ℝ+)
76adantr 481 . . . . 5 ((𝜑𝑓 ∈ (CauFil‘𝐷)) → 𝑅 ∈ ℝ+)
8 cfil3i 23543 . . . . 5 ((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑓 ∈ (CauFil‘𝐷) ∧ 𝑅 ∈ ℝ+) → ∃𝑥𝑋 (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)
94, 5, 7, 8syl3anc 1362 . . . 4 ((𝜑𝑓 ∈ (CauFil‘𝐷)) → ∃𝑥𝑋 (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)
103ad2antrr 722 . . . . . . . 8 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → 𝐷 ∈ (∞Met‘𝑋))
11 relcmpcmet.1 . . . . . . . . 9 𝐽 = (MetOpen‘𝐷)
1211mopntopon 22720 . . . . . . . 8 (𝐷 ∈ (∞Met‘𝑋) → 𝐽 ∈ (TopOn‘𝑋))
1310, 12syl 17 . . . . . . 7 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → 𝐽 ∈ (TopOn‘𝑋))
14 cfilfil 23541 . . . . . . . . 9 ((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑓 ∈ (CauFil‘𝐷)) → 𝑓 ∈ (Fil‘𝑋))
153, 14sylan 580 . . . . . . . 8 ((𝜑𝑓 ∈ (CauFil‘𝐷)) → 𝑓 ∈ (Fil‘𝑋))
1615adantr 481 . . . . . . 7 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → 𝑓 ∈ (Fil‘𝑋))
17 simprr 769 . . . . . . . 8 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)
18 topontop 21193 . . . . . . . . . . 11 (𝐽 ∈ (TopOn‘𝑋) → 𝐽 ∈ Top)
1913, 18syl 17 . . . . . . . . . 10 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → 𝐽 ∈ Top)
20 simprl 767 . . . . . . . . . . . 12 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → 𝑥𝑋)
216rpxrd 12271 . . . . . . . . . . . . 13 (𝜑𝑅 ∈ ℝ*)
2221ad2antrr 722 . . . . . . . . . . . 12 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → 𝑅 ∈ ℝ*)
23 blssm 22699 . . . . . . . . . . . 12 ((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑥𝑋𝑅 ∈ ℝ*) → (𝑥(ball‘𝐷)𝑅) ⊆ 𝑋)
2410, 20, 22, 23syl3anc 1362 . . . . . . . . . . 11 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (𝑥(ball‘𝐷)𝑅) ⊆ 𝑋)
25 toponuni 21194 . . . . . . . . . . . 12 (𝐽 ∈ (TopOn‘𝑋) → 𝑋 = 𝐽)
2613, 25syl 17 . . . . . . . . . . 11 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → 𝑋 = 𝐽)
2724, 26sseqtrd 3923 . . . . . . . . . 10 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (𝑥(ball‘𝐷)𝑅) ⊆ 𝐽)
28 eqid 2793 . . . . . . . . . . 11 𝐽 = 𝐽
2928clsss3 21339 . . . . . . . . . 10 ((𝐽 ∈ Top ∧ (𝑥(ball‘𝐷)𝑅) ⊆ 𝐽) → ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) ⊆ 𝐽)
3019, 27, 29syl2anc 584 . . . . . . . . 9 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) ⊆ 𝐽)
3130, 26sseqtr4d 3924 . . . . . . . 8 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) ⊆ 𝑋)
3228sscls 21336 . . . . . . . . 9 ((𝐽 ∈ Top ∧ (𝑥(ball‘𝐷)𝑅) ⊆ 𝐽) → (𝑥(ball‘𝐷)𝑅) ⊆ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))
3319, 27, 32syl2anc 584 . . . . . . . 8 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (𝑥(ball‘𝐷)𝑅) ⊆ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))
34 filss 22133 . . . . . . . 8 ((𝑓 ∈ (Fil‘𝑋) ∧ ((𝑥(ball‘𝐷)𝑅) ∈ 𝑓 ∧ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) ⊆ 𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ⊆ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))) → ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) ∈ 𝑓)
3516, 17, 31, 33, 34syl13anc 1363 . . . . . . 7 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) ∈ 𝑓)
36 fclsrest 22304 . . . . . . 7 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝑓 ∈ (Fil‘𝑋) ∧ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) ∈ 𝑓) → ((𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) fClus (𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))) = ((𝐽 fClus 𝑓) ∩ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))))
3713, 16, 35, 36syl3anc 1362 . . . . . 6 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → ((𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) fClus (𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))) = ((𝐽 fClus 𝑓) ∩ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))))
38 inss1 4120 . . . . . . 7 ((𝐽 fClus 𝑓) ∩ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ⊆ (𝐽 fClus 𝑓)
39 eqid 2793 . . . . . . . . 9 dom dom 𝐷 = dom dom 𝐷
4011, 39cfilfcls 23548 . . . . . . . 8 (𝑓 ∈ (CauFil‘𝐷) → (𝐽 fClus 𝑓) = (𝐽 fLim 𝑓))
4140ad2antlr 723 . . . . . . 7 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (𝐽 fClus 𝑓) = (𝐽 fLim 𝑓))
4238, 41sseqtrid 3935 . . . . . 6 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → ((𝐽 fClus 𝑓) ∩ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ⊆ (𝐽 fLim 𝑓))
4337, 42eqsstrd 3921 . . . . 5 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → ((𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) fClus (𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))) ⊆ (𝐽 fLim 𝑓))
44 relcmpcmet.4 . . . . . . 7 ((𝜑𝑥𝑋) → (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ Comp)
4544ad2ant2r 743 . . . . . 6 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ Comp)
46 filfbas 22128 . . . . . . . . . 10 (𝑓 ∈ (Fil‘𝑋) → 𝑓 ∈ (fBas‘𝑋))
4716, 46syl 17 . . . . . . . . 9 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → 𝑓 ∈ (fBas‘𝑋))
48 fbncp 22119 . . . . . . . . 9 ((𝑓 ∈ (fBas‘𝑋) ∧ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) ∈ 𝑓) → ¬ (𝑋 ∖ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ 𝑓)
4947, 35, 48syl2anc 584 . . . . . . . 8 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → ¬ (𝑋 ∖ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ 𝑓)
50 trfil3 22168 . . . . . . . . 9 ((𝑓 ∈ (Fil‘𝑋) ∧ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) ⊆ 𝑋) → ((𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ (Fil‘((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ↔ ¬ (𝑋 ∖ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ 𝑓))
5116, 31, 50syl2anc 584 . . . . . . . 8 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → ((𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ (Fil‘((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ↔ ¬ (𝑋 ∖ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ 𝑓))
5249, 51mpbird 258 . . . . . . 7 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ (Fil‘((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))))
53 resttopon 21441 . . . . . . . . . 10 ((𝐽 ∈ (TopOn‘𝑋) ∧ ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) ⊆ 𝑋) → (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ (TopOn‘((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))))
5413, 31, 53syl2anc 584 . . . . . . . . 9 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ (TopOn‘((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))))
55 toponuni 21194 . . . . . . . . 9 ((𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ (TopOn‘((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) → ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) = (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))))
5654, 55syl 17 . . . . . . . 8 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)) = (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))))
5756fveq2d 6534 . . . . . . 7 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (Fil‘((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) = (Fil‘ (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))))
5852, 57eleqtrd 2883 . . . . . 6 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ (Fil‘ (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))))
59 eqid 2793 . . . . . . 7 (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) = (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))
6059fclscmpi 22309 . . . . . 6 (((𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ Comp ∧ (𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) ∈ (Fil‘ (𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))))) → ((𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) fClus (𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))) ≠ ∅)
6145, 58, 60syl2anc 584 . . . . 5 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → ((𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) fClus (𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))) ≠ ∅)
62 ssn0 4268 . . . . 5 ((((𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) fClus (𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))) ⊆ (𝐽 fLim 𝑓) ∧ ((𝐽t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅))) fClus (𝑓t ((cls‘𝐽)‘(𝑥(ball‘𝐷)𝑅)))) ≠ ∅) → (𝐽 fLim 𝑓) ≠ ∅)
6343, 61, 62syl2anc 584 . . . 4 (((𝜑𝑓 ∈ (CauFil‘𝐷)) ∧ (𝑥𝑋 ∧ (𝑥(ball‘𝐷)𝑅) ∈ 𝑓)) → (𝐽 fLim 𝑓) ≠ ∅)
649, 63rexlimddv 3251 . . 3 ((𝜑𝑓 ∈ (CauFil‘𝐷)) → (𝐽 fLim 𝑓) ≠ ∅)
6564ralrimiva 3147 . 2 (𝜑 → ∀𝑓 ∈ (CauFil‘𝐷)(𝐽 fLim 𝑓) ≠ ∅)
6611iscmet 23558 . 2 (𝐷 ∈ (CMet‘𝑋) ↔ (𝐷 ∈ (Met‘𝑋) ∧ ∀𝑓 ∈ (CauFil‘𝐷)(𝐽 fLim 𝑓) ≠ ∅))
671, 65, 66sylanbrc 583 1 (𝜑𝐷 ∈ (CMet‘𝑋))
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 207   ∧ wa 396   = wceq 1520   ∈ wcel 2079   ≠ wne 2982  ∀wral 3103  ∃wrex 3104   ∖ cdif 3851   ∩ cin 3853   ⊆ wss 3854  ∅c0 4206  ∪ cuni 4739  dom cdm 5435  ‘cfv 6217  (class class class)co 7007  ℝ*cxr 10509  ℝ+crp 12228   ↾t crest 16511  ∞Metcxmet 20200  Metcmet 20201  ballcbl 20202  fBascfbas 20203  MetOpencmopn 20205  Topctop 21173  TopOnctopon 21190  clsccl 21298  Compccmp 21666  Filcfil 22125   fLim cflim 22214   fClus cfcls 22216  CauFilccfil 23526  CMetccmet 23528 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1775  ax-4 1789  ax-5 1886  ax-6 1945  ax-7 1990  ax-8 2081  ax-9 2089  ax-10 2110  ax-11 2124  ax-12 2139  ax-13 2342  ax-ext 2767  ax-rep 5075  ax-sep 5088  ax-nul 5095  ax-pow 5150  ax-pr 5214  ax-un 7310  ax-cnex 10428  ax-resscn 10429  ax-1cn 10430  ax-icn 10431  ax-addcl 10432  ax-addrcl 10433  ax-mulcl 10434  ax-mulrcl 10435  ax-mulcom 10436  ax-addass 10437  ax-mulass 10438  ax-distr 10439  ax-i2m1 10440  ax-1ne0 10441  ax-1rid 10442  ax-rnegex 10443  ax-rrecex 10444  ax-cnre 10445  ax-pre-lttri 10446  ax-pre-lttrn 10447  ax-pre-ltadd 10448  ax-pre-mulgt0 10449  ax-pre-sup 10450 This theorem depends on definitions:  df-bi 208  df-an 397  df-or 843  df-3or 1079  df-3an 1080  df-tru 1523  df-ex 1760  df-nf 1764  df-sb 2041  df-mo 2574  df-eu 2610  df-clab 2774  df-cleq 2786  df-clel 2861  df-nfc 2933  df-ne 2983  df-nel 3089  df-ral 3108  df-rex 3109  df-reu 3110  df-rmo 3111  df-rab 3112  df-v 3434  df-sbc 3702  df-csb 3807  df-dif 3857  df-un 3859  df-in 3861  df-ss 3869  df-pss 3871  df-nul 4207  df-if 4376  df-pw 4449  df-sn 4467  df-pr 4469  df-tp 4471  df-op 4473  df-uni 4740  df-int 4777  df-iun 4821  df-iin 4822  df-br 4957  df-opab 5019  df-mpt 5036  df-tr 5058  df-id 5340  df-eprel 5345  df-po 5354  df-so 5355  df-fr 5394  df-we 5396  df-xp 5441  df-rel 5442  df-cnv 5443  df-co 5444  df-dm 5445  df-rn 5446  df-res 5447  df-ima 5448  df-pred 6015  df-ord 6061  df-on 6062  df-lim 6063  df-suc 6064  df-iota 6181  df-fun 6219  df-fn 6220  df-f 6221  df-f1 6222  df-fo 6223  df-f1o 6224  df-fv 6225  df-riota 6968  df-ov 7010  df-oprab 7011  df-mpo 7012  df-om 7428  df-1st 7536  df-2nd 7537  df-wrecs 7789  df-recs 7851  df-rdg 7889  df-1o 7944  df-2o 7945  df-oadd 7948  df-er 8130  df-map 8249  df-en 8348  df-dom 8349  df-sdom 8350  df-fin 8351  df-fi 8711  df-sup 8742  df-inf 8743  df-pnf 10512  df-mnf 10513  df-xr 10514  df-ltxr 10515  df-le 10516  df-sub 10708  df-neg 10709  df-div 11135  df-nn 11476  df-2 11537  df-n0 11735  df-z 11819  df-uz 12083  df-q 12187  df-rp 12229  df-xneg 12346  df-xadd 12347  df-xmul 12348  df-ico 12583  df-rest 16513  df-topgen 16534  df-psmet 20207  df-xmet 20208  df-met 20209  df-bl 20210  df-mopn 20211  df-fbas 20212  df-fg 20213  df-top 21174  df-topon 21191  df-bases 21226  df-cld 21299  df-ntr 21300  df-cls 21301  df-nei 21378  df-cmp 21667  df-fil 22126  df-flim 22219  df-fcls 22221  df-cfil 23529  df-cmet 23531 This theorem is referenced by:  cmpcmet  23593  cncmet  23596
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